Welding Cast Iron

[Ray C.]

What would be the best electrode, or method, to use when welding cast iron. I would like the weld to rust if possible.

Thanks for any information!

Ray

[Clem Z.]

Re: Welding Cast Iron

What would be the best electrode, or method, to use when welding cast iron. I would like the weld to rust if possible.

Thanks for any information!

Ray

i had a cracked cast iron block welded in the water jacket and the welder used a nickle rod.

[Mike M.]

Re: Welding Cast Iron

What would be the best electrode, or method, to use when welding cast iron. I would like the weld to rust if possible.



Ray

the cast iron part ought to be heated up in a furnace prior to welding with the nickle rod. if the part is valuable, i'd have an experienced welding shop with furnace capabilites do the welding..mike

[Dick W.]

Re: Welding Cast Iron

Cast iron is very tricky to weld without creating another crack. If you do not have expertise in cast welding, as Doc McQuack stated, take it to a welder that has an oven to heat (and cool properly) the item to be repaired.

[Kenneth B.]

Re: Welding Cast Iron

Cast iron is very tricky to weld without creating another crack. If you do not have expertise in cast welding, as Doc McQuack stated, take it to a welder that has an oven to heat (and cool properly) the item to be repaired.

Also one trick welders use to keep the crack from running is to drill a small hole at each end of the crack. That way the crack will not run when you weld it. Best left to a good weld shop that welds C.I.
KEN

[Chuck R.]

Re: Welding Cast Iron

Nickle rod and lots of heat.

We used to heat the cast until it was a dull red.
Then perform the weld.
Then keep the torch on the weld area slowly backing off on the heat to allow the metal to shrink gradually.

Chuck

[Dick W.]

Re: Welding Cast Iron

Also one trick welders use to keep the crack from running is to drill a small hole at each end of the crack. That way the crack will not run when you weld it. Best left to a good weld shop that welds C.I.
KEN

It will stop that crack, but will not stop the crack right beside the weld if pre-heating and cooling are not done properly.

[Ray C.]

Re: Welding Cast Iron

Thanks to all!

Ray